Slice for paper-making machines



Aug. 27, 1929.

P. J. ,LAMOUREUX SLICE FOR PAPER MAKING MACHINES Filed sept. 1, 1927 2sheets-sheen 1 l' V INVENToR y P/lzpslazlnowelz' A TTORNE Y.

Aug. 27, 1929. P. J. LAMouREUx SLICE FOR PAPER MAKING MACHINES Filedsept. l, 192'/ 2 sheets-Sheet 2 1NVENToR. Lanzan/reim ATTORNEY.

Patented Aug. 2.7, 1929.

UNITED STATES PATENT oFFlCE.

SLICE FOR PAPER-MAKING MACHINES.

Application led September 1, 1927. Serial No. 216,958.

This invention relates to a slice to be usted l.in paper making, and isdesigned primarily to be used in connection with paper making machinesof the F ourdrinier type, but it is to be understood that a slice, inaccordance with this invention, may be employed in connection with anytype of machine or for any purpose for which it is found applicable, andthe invention has for its object to provide, in a manner as hereinafterset forth, a slice of the class referred to for increasing the output ofthe machine without increasing the cost of maintenance by constructingand arranging -the slice in a manner to form a smooth unobstructedpassage for the pulp around the rear of the slice, whereby the pulp willtravel under the slice With almost absolute freedom from lumps or voids,thereby overcoming the formation of eddies and the gathering of the pulpat such point resulting' in retardation of' the operation of the machinedue to the time lostv .in freeing the pulp for passage to .the makingwire. A further object of the invention, yis to provide, in a manner ashereinafter set forth, a one-piece, resilient, adjustable slice forregulating the flow of paper pulp or stock onto the making wire ofthemachine.

A further object ofL theV invention is to provide, lin a manner ashereinafter set forth, a slice for use in connection with paper makingfor producing a product of uniform thickness and with lumps andapertures in the product reduced to a minimum.

Further objects of the invention are to provide, in a manner ashereinafter set forth, a slice-of the class referred to, which is simplein its construction and arrange- 40 ment, strong, durable, compact,thoroughly eflicientfin its use, readily installed, convenientlyadjusted and set in adjusted position, and comparatively inexpensive tomanufacture.

lVith the foregoing and other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described, and illustrated in theaccompanying drawings, wherein is shown an embodi- .nient of theinvention, but it is to be understood that changes, variations, andmodifications can be resorted to which will fall within the scope of theclaims hereunto appended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views Flgure 1 is a fragmentary view,broken away, 1n side elevation of a paper making machine showing theadaptation therewith of an adjustable slice in accordance with thisinvention.

Figure 2 is a fragmentary view, in vertical section of a paper makingmachine, showing the adaptation therewith of an adjustable slice inaccordance with this invention and with the slice in vertical section.

Figure 3 is a front elevation, partly 1n section, of a slice inaccordance with this invention, and showing the adaptation thereof inconnection with a paper making machine. l

Figure 4 is a section on line4-4, Figure 3.

Referring to the drawings in detail, there is illustrated a breast roll1, making wire 2, a box or containerj3, for the body of pulp or stock4.y The side walls, bottom and the front wall 7 0I' the box 3, areindicated respectively at 5, 6 and 7. The foregoing, elements are a partof a paper making machine of the Fourdrinier type and illustrated by wayof example to show the adaptation of a slice, in accordance with thisinvention, therewith.

The front wall 7 of the box 3, is inset with respect to the forward endsof the side walls 5 of said box. The bottom 6 has its lower face, at itsforward end, bevelled as at 8, and positioned over the making wire 2, atthe high part of the latter when travelling around the breast roll 1.The breast roll'l operates in a counter-clockwise direction and providesfor the upper portion of the making wire 2 to travel forwardly withrespect to the forward end of the bottom 6. The pulp or stock 4 isvdischarged from the box 3 over the forward end of the bottoni 6 and uponthe making wire 2. As is well known, the upper face of the bottom 6, atthe forward Iend thereof, is provided with the ordinary apron board, andthe latter is not shown.

The slice, in accordance with this invention, controls the discharge ofthe pulp or stock 4 from the box 3 onto the making wire 2. The slicecomprises a slice member formed of one piece of material, preferablysheet metal and possessing a resilient characteristic of the desireddegree. The majorv part of the slice member 1s disposed .at an obtuseangle with respect td the bottom 6 and said major part projectsforwardly from the front wall 7 of the box 3 towards the bottom 6 and ata downward inclination. The slice member will be referred to morespecifically hereinafter. The front Wall 7 of the box 3 has its bottomedge lpositioned a substantial distance above the bottom 6 and owing tothe position of said wall 7, with respect to the bottom 6, an outletforthe ulp or stock 4, is provided, and said out et is controlled by theslice member. The front wall 7 has its bottom edge positioned asubstantial distance rearwardly with respectto the forward edge of thebottom 6. The-forward edge of the bottom 6 is positioned slightlyrearwardly with respect to the forward edges of the side walls 5'of thebox 3. Each side Wall 5 of the box 3 is formed with a rectangularopening 9 having the major portion thereof projecting forwardly withresp-ect to theQ wall 7. The opening y9 extends rearwardly `asmalldistance with respect to the front wall 7 of the box 3. e

`A` slice, in accordance with this invention and for the purposereferred to, comprises a lvertically adjustable supporting plate 10which is positioned against the forward face of the front wall 7 andextendsfrom one side wall 5 to the other side wall 5 of said box 3. Theplate 1() is ofrectangular contour and its width thereof is materiallyless than the height of the front Wall 7. v The plate 10 extends fromthe lower part of the opening 9 to the lower end of the front wall 7.The

' lower face of the front wall 7 is bevelled as at 11 and the lower edgeof the plate l() is :I other end of the plate 10. The mortise 13, u

not only provides a shoulder 14, but in connection with the lower partof the forward face of the wall .7forms a socket or pocket .15. Each endof the plate 10 is provided with a forwardly extending right angularlydisposed flange 16. The flanges 16 abut against the inner faces of theside walls 5 of the box 3. The plate 10 is slidably connected'againstthe forward face of the front wall 7 of the box 3, b a pair ofvertically disposed combined gui e and retaim'ng'mem-- ber 17 whichoverlap the ianges 16, abut against the\ side walls 5, are fixedlysecured to these latter by the holdfas't devices 18, and extend to theforward face of the wall 7.- The adjusting means`for the plate 1() willbe presently referred to. I

The' plate 10 at its top is formed witha forwardly directed, rightangularly disposed l `ledge or support 19 of suitable width and whichextends from one end to the other end of the plate. The ledge 19 isprovided withv a series of spaced openings 20. 'Projecting laterallyfrom the rear of each end ofthe led e 19, is an'arm 21, of appropriatelength, an which is formed with a vertically disposed opening 22 havinga .threaded wall. The. arms 21 project in opposite directions withrespect to each other and extend throughthe openings 9. The arms 21 pro`ject a substantial distance from the side Walls .5 of the box 3. Securedto the outer faces of the side walls 5, and arranged below each arm 21,is an angle shaped bracket 23,

provided with a socket 24 and a retaining screw 25, and the latter ismounted in a "manner nto project towards the walls 5 and at 29, and isnot formed with threads, but is provided with an annular groove 30 intowhereby the shank 27 will berotatably connected to a bracket 23. Mountedon the shank 27 and positioned above the arm 21, is a binding nut 31,vhaving a knurled edge.

The slice member' is` indicated generally at 32, and in cross section,formed of a ma- Ijor part 33 and a part 34 which is disposed verticallywith respect to 'the major part 33.

which projects the inner end of the screw 25,

The parts 33, and 34 are disposed at an angle with respect to eachother, and the cross sectional width of the major part 33,

is materially greater than the cro sectional width of the part 34. Incross section the 'major part -33 extends in the same plane throughoutand the plane of the major` part 33 is at an obtuse angle with'respectto the 'I bottom 6 ofthe box '3. The inclination ofv the major part33-conforms to the inclinationof the bevelled lower edge of the plate I10. The ylower face' of the major at its rearaligns with the bevellelowerl end 11 of the front wall 7 of the box 3. The part 34 of the slicemember is positioned or pocket 15 formed by the mortise 13 and frontwall 7 of the box 3'. The part34 abuts art 33 'within the mortise 13, orrather in the socket against the rear face of the plate 10, by theholdfast devices 35. The bottom edge of the plate 10 abuts against theupper face of the major part 33, at the rear thereof.

Fixedly secured/to the upper face of the major part 33, of the slicemember 32, in proximity to the 'forward edge of said part 33, arespaced, upstanding yoke-shaped brackets 36, and into each of saidbrackets extends the lower end 37, of an adjusting rod 38 and with thelatter disposed at va rearl ward inclination from its lower to its upperend. The lower ends 37 of the adjusting rods 38 are pivotally connectedto the brackets 36, by the pivots 39. The upper portion of each of therods 38 is peripherally threaded as at 40. Each rod extends upwardlythrough an opening 20 in the ridge 19. Carried by each rod 38 is anupper and a lower combined adjusting and binding nut- 41, 42respectively, the former being arranged above the ridge 19 and thelatter below said ridge. The nut 41 at its upper end is formed with anannular flange 43, and the nut 42 at its lower end with an annularflange 44. The flanges have their edges knurled and provide means forconveniently turning the nuts on the rods, for the vpurpose ofvertically adjusting the rods.

The slice member 32 extends from one end wall 5 to the other end wall 5of the box 3 and the angle of the part 33 of said member, relative tothe upper face of the bottom 6, can be varied by adjusting the rods 38.The slice member can be adjusted, relative to the bottom 6, at variouspoints, throughout its length, due to the fact that the adjusting rods38 are disposed in spaced relal tion throughout said slice member andcan be vertically adjusted. The openings 20 are of a diameter wherebythe rods v38, when adjusted, can be shifted to varying rearwardinclinations, when desired. The plate 10, adjusting rods 38 and theslice member 32 can be bodily adjusted vertically by the adjustingmembers 27, engaging with the threaded walls of the openingsdn the arms21. The adjusting members 27 maintain the v ridge stationary and in setposition. The

guide members 17 slidably connect the plate 10, against the forward faceof the front wall 7 of the box 3. The openings 20, and the ridge 19, arearranged rearwardly wlth respect to the yoke-shapedbrackets 36.

The construction and arrangement of the slice member 32, forms a smoothunobstructed passage forthe pulp or stock and overcomes the forming ofeddies and the gathering of the pulp as it travels in the direction ofdischarge towards and onto the making wire 2. The angular dispositionsthroughout of the majorportion 33 of the slice 32, with respect to thebottom 6, prop vides an unobstructed passage and permits the stock to gounder the slice with almostv absolute freedom from lumps or voids, andunder such conditions the gathering ofthe pulp at such point isprevented. When the pulp is obstructed, eddies are formed and the pulpgathers and has to be freed by manual means, and this results in theretardation of operation of the machine. The objections pointed out areovercome by the construction and` arrangement of the slice as aforesaid,and therefore the slice vprovides for an increase in output with respectto the machine, without an increase in the cost of maintenance,therefore it is thought that the many advantages of an adjustable,flexible slice, in accordance with this invention and for the purposeset fort-l1, can be readily understood, and although the pre# ferredembodiment of the invention is as illustrated and described, yet it isto be understood that changes in the details of construction can be hadwhich will fall within the scope of the invention as claimed.

`What I claim is 1. In a slice for paper making, a vertical disposed,slidably connected plate, a slice member connected to the lower portionof said plate and having its major part projecting forwardly from saidplate at a downward inclination, upstanding, angularly adjusting meansfor and pivotally connected to said major part of said member andslidably connected with said plate, said adjusting means carryingelements coacting with the plate for maintaining the adjusting means inset position, and means connected with said plate for verticallyadjusting it and for maintaining it in adjusted position.

2. In a slice for paper making, a vertically disposed, slidablyconnected plate provided at its top with a forwardly directed ridge, aslice member having the major portion thereof disposed at a downwardinclination and its other portion iixedly secured to the lower end ofsaid plate, inclined adjusting hars for the inclined portion of saidmember, said bars pivotally connected at their lower ends to saidinclined portion and having their upper ends extending through saidridge,

means carried by said bars for vertically adjusting them, said meanscoacting with said ridge for maintaining said bars in adjusted position,and means for vertically adjusting said plate and for maintaining it inadjusted position.

3. In paper making machines of that type including a pulp box having itsbottom and top arranged to provide an opening` or out! let at the lowerportion of the front thereof for the discharge of the pulp, thecombination of a unitary slice member positioned over said bottom forcontrolling said outlet, said member including a vertically disposed artand a part extending forwardly from the latter and at an obtuse anglewith respect to said bottom, said obtuse angled part,in

transverse cross section, .extendn nin the latter, saidmeans andelements having cosame plane throughout, vertically a Justable actingmeans for retaining said elements in supporting means connected againstthe 'front adjusted position.

of said vertical part, and angularly adjust- -In testimony whereof, Iaix my'signature 5 able elements for and pivotally connected to hereto.

said obtuse angled part and slidably connected to said means forwardly'from the PHILLIP J. LAMoUREUX.

